JP5084403B2 - 分子ポンプ - Google Patents
分子ポンプ Download PDFInfo
- Publication number
- JP5084403B2 JP5084403B2 JP2007228602A JP2007228602A JP5084403B2 JP 5084403 B2 JP5084403 B2 JP 5084403B2 JP 2007228602 A JP2007228602 A JP 2007228602A JP 2007228602 A JP2007228602 A JP 2007228602A JP 5084403 B2 JP5084403 B2 JP 5084403B2
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- pump
- thread groove
- stator
- molecular pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/02—Multi-stage pumps
- F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
- F04D19/044—Holweck-type pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/20—Oxide or non-oxide ceramics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/50—Intrinsic material properties or characteristics
- F05D2300/516—Surface roughness
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Non-Positive Displacement Air Blowers (AREA)
Description
3 ねじ溝ポンプ(ねじ溝ポンプ部)
3a ロータ
3a1 凹凸
3b ステータ
Claims (1)
- ねじ溝ポンプのロータの表面及び該ロータ表面と対向するステータの表面の少なくとも一方の表面に微細な凹凸を有する粗表面を形成し、該粗表面の微細な凹凸は高さを0.01乃至0.1ミリメートルに形成し、該粗表面はセラミックスメッキによって形成されたことを特徴とする分子ポンプ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007228602A JP5084403B2 (ja) | 2007-09-04 | 2007-09-04 | 分子ポンプ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007228602A JP5084403B2 (ja) | 2007-09-04 | 2007-09-04 | 分子ポンプ |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012152255A Division JP5549986B2 (ja) | 2012-07-06 | 2012-07-06 | 分子ポンプ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009062812A JP2009062812A (ja) | 2009-03-26 |
JP5084403B2 true JP5084403B2 (ja) | 2012-11-28 |
Family
ID=40557630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007228602A Active JP5084403B2 (ja) | 2007-09-04 | 2007-09-04 | 分子ポンプ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5084403B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013108482A1 (de) * | 2013-08-06 | 2015-02-12 | Pfeiffer Vacuum Gmbh | Vakuumpumpstufe |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58155459U (ja) * | 1982-04-14 | 1983-10-17 | 三菱重工業株式会社 | 軸封構造 |
JP2556320B2 (ja) * | 1987-03-18 | 1996-11-20 | セイコ−精機株式会社 | 真空ポンプ |
JPH05164087A (ja) * | 1991-12-13 | 1993-06-29 | Hitachi Ltd | ねじ溝分子ポンプ |
JP3312673B2 (ja) * | 1994-10-21 | 2002-08-12 | 株式会社荏原製作所 | 非接触環状シール |
JP2000161286A (ja) * | 1998-11-25 | 2000-06-13 | Shimadzu Corp | ターボ分子ポンプ |
JP4785400B2 (ja) * | 2005-04-08 | 2011-10-05 | 株式会社大阪真空機器製作所 | 真空ポンプのロータ |
-
2007
- 2007-09-04 JP JP2007228602A patent/JP5084403B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2009062812A (ja) | 2009-03-26 |
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